DE102012207763B4 - Operating device for a household appliance and household appliance - Google Patents

Operating device for a household appliance and household appliance

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Publication number
DE102012207763B4
DE102012207763B4 DE102012207763.4A DE102012207763A DE102012207763B4 DE 102012207763 B4 DE102012207763 B4 DE 102012207763B4 DE 102012207763 A DE102012207763 A DE 102012207763A DE 102012207763 B4 DE102012207763 B4 DE 102012207763B4
Authority
DE
Germany
Prior art keywords
circuit board
opening
printed circuit
operating device
side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE102012207763.4A
Other languages
German (de)
Other versions
DE102012207763A1 (en
Inventor
Jürgen Gaus
Walter Gänsler
Wilhelm Heicks
Achim Dieringer
Klaus Trumpa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGO Elektro-Geratebau GmbH
Original Assignee
EGO Elektro-Geratebau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EGO Elektro-Geratebau GmbH filed Critical EGO Elektro-Geratebau GmbH
Priority to DE102012207763.4A priority Critical patent/DE102012207763B4/en
Publication of DE102012207763A1 publication Critical patent/DE102012207763A1/en
Application granted granted Critical
Publication of DE102012207763B4 publication Critical patent/DE102012207763B4/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines in so far as such details are not special to washing machines of groups D06F21/00 - D06F25/00 or to any particular type of washing machine defined in groups D06F9/00 - D06F19/00 or D06F27/00
    • D06F39/005Arrangements for programme selection; Indication of the selected programme, programme progress or other variables, e.g. temperature
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines in so far as such details are not special to washing machines of groups D06F21/00 - D06F25/00 or to any particular type of washing machine defined in groups D06F9/00 - D06F19/00 or D06F27/00
    • D06F39/12Casings; Tubs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/005Mounting of control devices

Abstract

Operating device (1) for a domestic appliance (2), comprising: - a panel (3), - which closes a provided for the operating device opening of the household appliance (2) when the operating device is inserted in the intended use in the opening, and- at least partially is translucent, - a printed circuit board (5), - which has a first side (5a) facing the diaphragm (3) and which has a second side (5b) facing the first side (5a), - is arranged behind the diaphragm (3) from the perspective of the operator, - which has at least one opening (6) and which has at least one conductive sensor surface (7) which is part of a capacitive touch sensor, - at least one light source (8) on the second side (5b) of the printed circuit board (5), in particular in the region of the opening (6) is arranged, and- a reflector means (9), which is arranged from the operator's point of view behind the printed circuit board (5) and which the lighting means (8) so überdec kt that light emitted from the light source (8) is reflected by the reflector means (9) and passes through the opening (6) of the printed circuit board (5) in the direction of the diaphragm (3), - wherein the reflector means (9) at least one cup-shaped region (9a), which encloses the lighting means (8) and covers the opening (6), - wherein the at least one conductive sensor surface (7) on the first side (5a) of the printed circuit board (5) is arranged, and- wherein the operating device an evaluation device which is arranged on the second side (5b) of the printed circuit board (5), which is electrically contacted by means of a through-contacting of the printed circuit board (5) with the conductive sensor surface (7) and which is adapted to detect an actuation.

Description

  • The US 2010/0155206 A1 and the DE 10 2009 060 207 A1 show operating devices in which each light generated by a light source is deflected by means of optical fibers.
  • The US 2009/0039068 A1 shows a household appliance with an operating device.
  • The invention relates to an operating device for a household appliance and a household appliance.
  • The invention has for its object to provide an operating device for a household appliance and a household appliance available, which are simple and inexpensive to produce, in particular, the control device should be integrated to save space in the household appliance.
  • The invention solves this problem by an operating device according to claim 1 and a household appliance according to claim 8.
  • The operating device for a household appliance has an aperture, for example a plastic control panel. The panel closes a provided for the operating device opening or recess of the household appliance, when the operating device is used as intended in the opening. The aperture is at least partially translucent so that it transmits light generated behind the aperture to allow backlighting of controls.
  • The operating device further has a printed circuit board with a first and a second side, wherein the first side is intentionally facing the diaphragm and the second side of the first side opposite. From the perspective of an operator or user, the circuit board is located behind the panel. The circuit board has at least one opening or opening, for example in the form of a bore and / or a cutout. On the first side or the second side of the printed circuit board at least one conductive sensor surface is provided as part of a capacitive touch sensor.
  • The operating device further has at least one light source, which is arranged on the second side of the printed circuit board, in particular in the region of the opening, for example, at the edge of the opening or the opening partially overlapping.
  • The operating device further comprises a reflector means or a reflector, which is arranged from the operator's point of view behind the circuit board and the or the illuminant covers such that the light emitted by the light source is reflected by the reflector means and through the opening of the Printed circuit board passes in the direction of the diaphragm to effect a backlighting. Due to the reflection, an indirect and thus optically high quality backlighting can be achieved.
  • The reflector means may have at least one cup-shaped or dome-shaped region which at least partially surrounds the luminous means.
  • The light source can be an LED.
  • The printed circuit board can, of course, with the exception of the opening, be opaque.
  • The diaphragm, the printed circuit board and the reflector means may be mechanically connected to one another, for example by means of at least one dome.
  • The at least one conductive sensor surface may be arranged on the first side of the printed circuit board.
  • The operating device may have an evaluation device, which is arranged on the second side of the printed circuit board, which is electrically contacted by means of a through-connection of the printed circuit board with the conductive sensor surface, if the conductive sensor surface is provided on the first side, and which is adapted to actuation the capacitive sensor element comprising the sensor surface to detect conventionally. The evaluation device can be embodied, for example, by a microprocessor.
  • The circuit board and the diaphragm can form plane-parallel surfaces.
  • The aperture or a plurality of apertures in combination may define an icon in conjunction with an associated illuminant, such as a triangle, a line, a circular arc, an arrow up, an arrow down, etc. For this, the aperture is for example provided with a desired symbol shape as a cutout in the circuit board. If multiple openings are provided, more complex, composite (total) symbols can be generated by a combination of the individual openings, wherein the combination can be assigned to exactly one single light source. The symbol-shaped opening or symbol-shaped openings, together with the illuminant and the reflector, generate / generate a corresponding backlit symbol on the panel.
  • The panel may have at least one print that bounds or defines a sensitive area of the capacitive touch sensor. The panel and the circuit board can be aligned with each other so that the conductive sensor surface is arranged from the perspective of the operator behind the printing on the circuit board.
  • The household appliance has an opening or recess for receiving an operating device and an above-mentioned, inserted into the opening operating device.
  • The household appliance may be a refrigerator, wherein the opening is provided in a refrigerator door.
  • The invention will be described below with reference to the drawings. This shows schematically:
    • 1 a section through an inventive operating device of a household appliance,
    • 2 a plan view of a first side of a circuit board of the operating device of 1 and
    • 3 a plan view of an aperture of the operating device of 1 from the perspective of an operator.
  • 1 shows a section through an operating device according to the invention 1 of a household appliance 2 ,
  • The operating device 1 is in an opening of the household appliance 2 used such that a translucent, but not transparent plastic panel 3 of the operating device 1 essentially completely closes the opening.
  • The household appliance 2 is a refrigerator, with the opening provided in a refrigerator door.
  • Again referring to 1 , includes the operating device 1 an opaque circuit board 5 with a first page 5a that the iris 3 and a second page 5b that's the first page 5a opposite. The circuit board 5 is from the perspective of the operator behind the panel 3 arranged, the circuit board 5 and the aperture 3 form plane-parallel surfaces.
  • The circuit board comprises a plurality of openings in the form of cutouts 6 and a plurality of conductive sensor surfaces 7 (see also 2 ), on the first page 5a the circuit board 5 For example, may be provided as a circular, rectangular or square metallic surfaces and each of which is part of an associated capacitive touch sensor.
  • The operating device 1 includes several bulbs in the form of LEDs 8th that on the second page 5b the circuit board 5 in the area of the openings 6 are arranged.
  • A reflector 9 is from the perspective of the operator behind the circuit board 5 arranged. Cup-shaped areas 9a of the reflector 9 cover associated LEDs 8th such that from the LEDs 8th emitted light is reflected and through associated openings 6 in the direction of the aperture 3 passes.
  • To form a unit are the aperture 3 , the circuit board 5 and the reflector 8th by means of a dome 10 mechanically interconnected or caulked.
  • An evaluation device, not shown, in the form of a microprocessor is on the second side 5b the circuit board 5 arranged, wherein the microprocessor or an associated evaluation circuit by means of a plurality of vias, not shown, of the circuit board 5 with the conductive sensor surfaces 7 electrically contacted. The evaluation device conventionally recognizes an actuation of the conductive sensor surfaces 7 or of the corresponding capacitive sensor element.
  • The operating unit 1 further has a second circuit board 11 on that with the first circuit board 5 electrically connected by means of a connector, not shown. The second circuit board 11 includes power electronics for controlling electrical consumers, etc.
  • Next, a not-shown housing may be provided which, for example, from behind over the aperture 3 is pushed and surrounds the illustrated components.
  • 2 shows a plan view of the first page 5a the circuit board 5 from 1 , Pro LED 8th each have five openings 6 or perforations provided in the form of cutouts, which in combination form a respective (total) symbol. The openings are linear, arrow-shaped or circular arc-shaped. A total of five total symbols are provided, wherein a respective dome-shaped or cup-shaped area 9a of the reflector 9 all openings 6 a respective associated overall symbol covers, whereby crosstalk between different total symbols is prevented.
  • Referring to 3 , shows the aperture 3 on the operator facing or facing side prints 4a . 4b . 4c and 4d which respectively border or limit a single sensitive area of a capacitive touch sensor or a capacitive key. The corresponding symbol is within the imprints 4a . 4b . 4c and 4d by backlighting by means of the associated LED 8th and the associated openings 6 generated.
  • The conductive sensor surfaces 7 are as metallic layers, such as copper layers, on the first page 5a the circuit board 5 provided, with the layers of the openings 6 are interspersed. For reasons of interference immunity are the sensor surfaces 7 from a metallic layer 12 on the first page 5a the circuit board 5 surrounded, with the sensor surfaces 7 by etching 13 galvanic of the metallic layer 12 and are separated from each other. The sensor surfaces 7 are so on the circuit board 5 arranged that they are behind the imprints 4a . 4b . 4c and 4d lie.
  • When an operator puts his finger on the bezel 3 within one by the printing 4a . 4b . 4c respectively. 4d presses defined boundary, a function is performed, which corresponds to the symbol generated by backlighting.

Claims (9)

  1. Operating device (1) for a household appliance (2), comprising: a diaphragm (3), - The one provided for the operating device opening of the household appliance (2) closes when the operating device is used as intended in the opening, and which is at least partially translucent, a printed circuit board (5), - which has a first side (5a) which is to face the diaphragm (3) and which has a second side (5b) facing the first side (5a), - which is located behind the diaphragm (3) from the operator's point of view, - Which has at least one opening (6) and having at least one conductive sensor surface (7) which is part of a capacitive touch sensor, - At least one lighting means (8) on the second side (5 b) of the printed circuit board (5), in particular in the region of the opening (6), is arranged, and - A reflector means (9), which is arranged from the operator's point of view behind the printed circuit board (5) and which covers the lighting means (8) such that light emitted by the lighting means (8) is reflected by the reflector means (9) and through the opening (6) the printed circuit board (5) passes in the direction of the diaphragm (3), - wherein the reflector means (9) has at least one cup-shaped region (9a) which encloses the lighting means (8) and covers the opening (6), - Wherein the at least one conductive sensor surface (7) on the first side (5a) of the printed circuit board (5) is arranged, and - wherein the operating device has an evaluation device which is arranged on the second side (5b) of the printed circuit board (5) which is electrically contacted by means of a through-contacting of the printed circuit board (5) with the conductive sensor surface (7) and which is adapted to a To detect actuation.
  2. Control device after Claim 1 , characterized in that the lighting means is an LED.
  3. Control device after Claim 1 or 2 , characterized in that the printed circuit board (5) is opaque.
  4. Operating device according to one of the preceding claims, characterized in that the diaphragm (3), the printed circuit board (5) and the reflector means (8) are mechanically connected to each other.
  5. Operating device according to one of the preceding claims, characterized in that the printed circuit board (5) and the diaphragm (3) form surfaces which are plane-parallel to each other.
  6. Operating device according to one of the preceding claims, characterized in that the opening (6) defines a symbol.
  7. Operating device according to one of the preceding claims, characterized in that the diaphragm (3) at least one printing (4a, 4b, 4c, 4d), which bounds a sensitive area of the capacitive touch sensor.
  8. Household appliance (2), comprising: - An opening for receiving an operating device and - An inserted into the opening operating device (1) according to one of the preceding claims.
  9. Household appliance after Claim 8 , characterized in that the household appliance is a refrigerator, wherein the opening is provided in a refrigerator door.
DE102012207763.4A 2012-05-09 2012-05-09 Operating device for a household appliance and household appliance Active DE102012207763B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102012207763.4A DE102012207763B4 (en) 2012-05-09 2012-05-09 Operating device for a household appliance and household appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012207763.4A DE102012207763B4 (en) 2012-05-09 2012-05-09 Operating device for a household appliance and household appliance

Publications (2)

Publication Number Publication Date
DE102012207763A1 DE102012207763A1 (en) 2013-11-14
DE102012207763B4 true DE102012207763B4 (en) 2018-05-17

Family

ID=49475493

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102012207763.4A Active DE102012207763B4 (en) 2012-05-09 2012-05-09 Operating device for a household appliance and household appliance

Country Status (1)

Country Link
DE (1) DE102012207763B4 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20020621U1 (en) * 2000-12-04 2001-03-08 Voith Turbo Kg Preselection device, in particular key switch
DE29724848U1 (en) * 1996-06-26 2004-09-30 Osram Opto Semiconductors Gmbh Light emitting semiconductor component having luminescence
US20090039068A1 (en) 2007-08-10 2009-02-12 Electrolux Home Products, Inc. Electric current conduction system for appliance
US20100155206A1 (en) 2007-10-08 2010-06-24 Whirlpool Corporation Touch switch for electrical appliances and electrical appliance provided with such switch
DE102009060207A1 (en) 2009-12-23 2011-06-30 Diehl AKO Stiftung & Co. KG, 88239 Capacitive touch switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29724848U1 (en) * 1996-06-26 2004-09-30 Osram Opto Semiconductors Gmbh Light emitting semiconductor component having luminescence
DE20020621U1 (en) * 2000-12-04 2001-03-08 Voith Turbo Kg Preselection device, in particular key switch
US20090039068A1 (en) 2007-08-10 2009-02-12 Electrolux Home Products, Inc. Electric current conduction system for appliance
US20100155206A1 (en) 2007-10-08 2010-06-24 Whirlpool Corporation Touch switch for electrical appliances and electrical appliance provided with such switch
DE102009060207A1 (en) 2009-12-23 2011-06-30 Diehl AKO Stiftung & Co. KG, 88239 Capacitive touch switch

Also Published As

Publication number Publication date
DE102012207763A1 (en) 2013-11-14

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